You give some nice tips. Such as harrassing from far away. You will be a main target. On your item selection you go for alot of Mana And HP. The HP is great for Malzahar. The mana not so much. Mana conservation can be a problem middle lane. But if your using your malefic visions right it shouldnt be too much of a problem. Its definately not a problem late game. I think you could be getting pretty much the same HP and AP as you are but with some added effects, like slow, magic penetration, armor, and other things that will benefit you more in taking out oppenents. Ghost and Ignite work wonders so good advice there. And exhaust can be great too. I dont see much use in flash but thats just me. I think it can be a very viable build with the high HP and AP. You can deal out some nice dmg while taking some as well. Consider items with less MP though. Anyways. If you give more detail in some other areas I'll +1 you.